Using curl to send email

if one wants to send mails as carbon copy or blind carbon copy:

curl --url 'smtps://smtp.gmail.com:465' --ssl-reqd \
  --mail-from '[email protected]' --mail-rcpt '[email protected]' \
  --mail-rcpt '[email protected]' --mail-rcpt '[email protected]' \
  --upload-file mail.txt --user '[email protected]:password' --insecure

From: "User Name" <[email protected]>
To: "John Smith" <[email protected]>
Cc: "Mary Smith" <[email protected]>
Subject: This is a test

a BCC recipient eli is not specified in the data, just in the RCPT list.

curl --ssl-reqd \
  --url 'smtps://smtp.gmail.com:465' \
  --user '[email protected]:password' \
  --mail-from '[email protected]' \
  --mail-rcpt '[email protected]' \
  --upload-file mail.txt

mail.txt file contents:

From: "User Name" <[email protected]>
To: "John Smith" <[email protected]>
Subject: This is a test

Hi John,
I’m sending this mail with curl thru my gmail account.
Bye!

Additional info:

1. I’m using curl version 7.21.6 with SSL support.

2. You don't need to use the --insecure switch, which prevents curl from performing SSL connection verification. See this online resource for further details.

3. It’s considered a bad security practice to pass account credentials thru command line arguments. Use --netrc-file. See the documentation.

4. You must turn on access for less secure apps or the newer App passwords.